Laboratory glass wares which reacts with hydrofluoric acid, are made of the ______________ glass?

Related Mcqs:

1. Superior quality laboratory apparatus is made of the _____________ glass having low thermal co-efficient of expansion & high chemical resistance?

   A. Flint B. Soda C. Pyrex D. Potash...

2. Coloured glass is obtained by mixing of colored salts. Addition of ___________________ oxide is done to impart greenish blue color to the glass?

   A. Chromium B. Arsenic C. Copper D. Manganese...

3. ___________________ glass is used for the manufacture of optical glass ?

   A. Pyrex B. Soda C. Flint D. Crooke’s...

4. Type of glass used in optical work is the ___________________ glass?

   A. Soda-lime B. Fibre C. Lead D. Borosilicate...

5. Commonly used glass is known as the _______________ glass?

   A. Flint B. Hard C. Pyrex D. Soda...

6. The type of high refractive index glass used in optical instruments is _____________ glass?

   A. Pyrex B. Flint C. Crookes D. None of these...

7. ________________ acid is an unsaturated fatty acid ?

   A. Palmitic B. Oleic C. Stearic D. Oxalic...

8. ______________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant ?

   A. Pyrex B. Soda lime C. Lead D. High silica...

9. Blue colour is imparted to glass by the addition of__________________?

   A. FeSO4 B. PbO C. CaO D. NaOH...

10. Dense soda ash used in the manufacture of glass, is chemically represented by__________________?

    A. Na2CO3 B. Na2CO3.10H2O C. Na2CO3.H2O D. Na2HCO3...